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fd9cd08609
When looking at the tests committed by Roman at r346587, I noticed that numbers reported by the resource pressure for PdAGU01 were wrong. In particular, according to the aut-generated CHECK lines in tests memcpy-like-test.s and store-throughput.s, resource pressure for PdAGU01 was not uniformly distributed among the two AGEN pipes. It turns out that the reason why pressure was not correctly distributed, was because the "resource selection strategy" object associated with PdAGU01 was not correctly updated on the event of AGEN pipe used. As a result, llvm-mca was not simulating a round-robin pipeline allocation for PdAGU01. Instead, PdAGU1 was always prioritized over PdAGU0. This patch fixes the issue; now processor resource strategy objects for resources declaring multiple units, are correctly notified in the event of "resource used". llvm-svn: 346650
83 lines
3.7 KiB
ArmAsm
83 lines
3.7 KiB
ArmAsm
# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
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# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=bdver2 -timeline -timeline-max-iterations=3 < %s | FileCheck %s
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leaq 8(%rsp, %rdi, 2), %rax
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vbroadcastss (%rax), %ymm0
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# CHECK: Iterations: 100
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# CHECK-NEXT: Instructions: 200
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# CHECK-NEXT: Total Cycles: 206
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# CHECK-NEXT: Total uOps: 400
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# CHECK: Dispatch Width: 4
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# CHECK-NEXT: uOps Per Cycle: 1.94
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# CHECK-NEXT: IPC: 0.97
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# CHECK-NEXT: Block RThroughput: 2.0
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# CHECK: Instruction Info:
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# CHECK-NEXT: [1]: #uOps
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# CHECK-NEXT: [2]: Latency
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# CHECK-NEXT: [3]: RThroughput
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# CHECK-NEXT: [4]: MayLoad
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# CHECK-NEXT: [5]: MayStore
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# CHECK-NEXT: [6]: HasSideEffects (U)
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# CHECK: [1] [2] [3] [4] [5] [6] Instructions:
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# CHECK-NEXT: 2 1 0.50 leaq 8(%rsp,%rdi,2), %rax
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# CHECK-NEXT: 2 6 2.00 * vbroadcastss (%rax), %ymm0
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# CHECK: Resources:
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# CHECK-NEXT: [0.0] - PdAGLU01
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# CHECK-NEXT: [0.1] - PdAGLU01
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# CHECK-NEXT: [1] - PdBranch
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# CHECK-NEXT: [2] - PdCount
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# CHECK-NEXT: [3] - PdDiv
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# CHECK-NEXT: [4] - PdEX0
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# CHECK-NEXT: [5] - PdEX1
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# CHECK-NEXT: [6] - PdFPCVT
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# CHECK-NEXT: [7.0] - PdFPFMA
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# CHECK-NEXT: [7.1] - PdFPFMA
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# CHECK-NEXT: [8.0] - PdFPMAL
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# CHECK-NEXT: [8.1] - PdFPMAL
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# CHECK-NEXT: [9] - PdFPMMA
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# CHECK-NEXT: [10] - PdFPSTO
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# CHECK-NEXT: [11] - PdFPU0
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# CHECK-NEXT: [12] - PdFPU1
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# CHECK-NEXT: [13] - PdFPU2
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# CHECK-NEXT: [14] - PdFPU3
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# CHECK-NEXT: [15] - PdFPXBR
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# CHECK-NEXT: [16.0] - PdLoad
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# CHECK-NEXT: [16.1] - PdLoad
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# CHECK-NEXT: [17] - PdMul
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# CHECK-NEXT: [18] - PdStore
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# CHECK: Resource pressure per iteration:
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# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18]
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# CHECK-NEXT: 0.50 0.50 - - - 0.50 0.50 - 2.00 2.00 - - - - 1.00 1.00 - - - 0.50 0.50 - -
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# CHECK: Resource pressure by instruction:
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# CHECK-NEXT: [0.0] [0.1] [1] [2] [3] [4] [5] [6] [7.0] [7.1] [8.0] [8.1] [9] [10] [11] [12] [13] [14] [15] [16.0] [16.1] [17] [18] Instructions:
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# CHECK-NEXT: - - - - - 0.50 0.50 - - - - - - - - - - - - - - - - leaq 8(%rsp,%rdi,2), %rax
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# CHECK-NEXT: 0.50 0.50 - - - - - - 2.00 2.00 - - - - 1.00 1.00 - - - 0.50 0.50 - - vbroadcastss (%rax), %ymm0
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# CHECK: Timeline view:
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# CHECK-NEXT: 012
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# CHECK-NEXT: Index 0123456789
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# CHECK: [0,0] DeER . . . leaq 8(%rsp,%rdi,2), %rax
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# CHECK-NEXT: [0,1] DeeeeeeER . . vbroadcastss (%rax), %ymm0
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# CHECK-NEXT: [1,0] .DeE----R . . leaq 8(%rsp,%rdi,2), %rax
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# CHECK-NEXT: [1,1] .DeeeeeeER. . vbroadcastss (%rax), %ymm0
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# CHECK-NEXT: [2,0] . DeE----R. . leaq 8(%rsp,%rdi,2), %rax
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# CHECK-NEXT: [2,1] . D==eeeeeeER vbroadcastss (%rax), %ymm0
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# CHECK: Average Wait times (based on the timeline view):
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# CHECK-NEXT: [0]: Executions
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# CHECK-NEXT: [1]: Average time spent waiting in a scheduler's queue
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# CHECK-NEXT: [2]: Average time spent waiting in a scheduler's queue while ready
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# CHECK-NEXT: [3]: Average time elapsed from WB until retire stage
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# CHECK: [0] [1] [2] [3]
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# CHECK-NEXT: 0. 3 1.0 1.0 2.7 leaq 8(%rsp,%rdi,2), %rax
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# CHECK-NEXT: 1. 3 1.7 0.7 0.0 vbroadcastss (%rax), %ymm0
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